A four-way diaphragm type oxygen generator ventilation regulating valve

Abstract

The application relates to a four-way diaphragm type oxygen generator gas exchange regulating valve, and relates to the technical field of electromagnetic valves.The valve body and two conductive pivots installed on the valve body are provided.The valve body is symmetrically provided with two valve cavities, and a valve rod is slidably arranged in each valve cavity.The valve cavity comprises a top cavity, a middle cavity and a bottom cavity which are connected with each other.The valve rod is slidably arranged in the middle cavity, and the top end and the bottom end of the valve rod are respectively sleeved with an upper diaphragm and a lower diaphragm for sealing the top cavity and the bottom cavity.The valve body is symmetrically provided with air inlet channels which are respectively connected with the two middle cavities.A plug ring is arranged at the two ends of the valve rod.The valve body is respectively provided with air outlet channels one which are connected with the two top cavities and air outlet channels two which are connected with the two bottom cavities.The valve body is symmetrically provided with two driving elements which are respectively used for driving the two valve rods and are electrically connected with the conductive pivots.The structure of the oxygen generator gas exchange regulating valve is improved, so that the valve can regulate the gas in more channels with higher efficiency.

Description

Technical Field

[0001] This application relates to the field of solenoid valve technology, and in particular to a four-way diaphragm oxygen generator ventilation regulating valve. Background Technology

[0002] The ventilation valve (also known as a four-way valve) of an oxygen concentrator is a key component controlling the separation of oxygen and nitrogen. It achieves continuous oxygen supply by periodically switching the adsorption and desorption processes of the molecular sieve. In the structure of an oxygen concentrator, the ventilation valve is usually connected to the compressor, molecular sieve, heat dissipation copper pipe, and exhaust pipe. By adjusting the gas passage, it realizes the alternating operation of the molecular sieve and pressure control functions, thereby smoothly exchanging the gas in the oxygen concentrator.

[0003] However, most existing ventilation valves have a single inlet, and the compressed gas is discharged from different outlets through valve body adjustment, achieving multi-control regulation. Although this structure can achieve split exhaust, it is inefficient and can only regulate one type of gas due to the influence of the single inlet. For oxygen generators that require the combined function of circulating and regulating multiple gases, this type of valve body obviously cannot fully meet the usage requirements. Utility Model Content

[0004] In order to enhance the functionality of the ventilation valve in existing oxygen concentrators, enabling it to regulate gases from multiple parts and improve gas delivery efficiency, this application provides a four-way diaphragm-type ventilation regulating valve for oxygen concentrators.

[0005] The four-channel diaphragm-type oxygen generator ventilation regulating valve provided in this application adopts the following technical solution:

[0006] A four-channel diaphragm-type oxygen generator ventilation regulating valve includes a valve body and two conductive hubs symmetrically mounted on the valve body. Both conductive hubs are externally connected to a power source. The valve body has two symmetrically arranged valve chambers, each containing a valve stem that slides through it. Each valve chamber includes a top chamber, a middle chamber, and a bottom chamber that communicate with each other. The valve stem slides through the middle chamber, and the top and bottom ends of the valve stem are respectively fitted with an upper diaphragm and a lower diaphragm for sealing the top and bottom chambers. The valve body has symmetrically arranged air inlet channels communicating with the two middle chambers. Both ends of the valve stem are fitted with plug rings; when one plug ring enters the middle chamber, the other plug ring leaves the middle chamber. The valve body also has an air outlet channel one communicating with the two top chambers and an air outlet channel two communicating with the two bottom chambers. Two symmetrically arranged driving components, electrically connected to the conductive hubs, are used to drive the two valve stems respectively.

[0007] Optionally, the driving component is an electric push rod, the bottom cavity includes an upper section and a lower section, and the upper section and the lower section are separated by an airtight air-blocking ring. The upper section is connected to the air outlet channel. The valve body has two symmetrically arranged pneumatic channels that are respectively connected to the two lower sections. The output end of the electric push rod slides through the pneumatic channel to push air into the lower section and drive the valve rod to move by changing the air pressure.

[0008] Optionally, a pressure relief hole is provided on one side wall of the air outlet channel, and a pressure relief channel communicating with the outside is provided on the valve body. The pressure relief channel is connected to the pressure relief hole and the upper partition. An elastic sealing plug for blocking the pressure relief channel is also installed in the pressure relief channel.

[0009] Optionally, each of the two pneumatic channels has a pressure balancing hole on its sidewall to balance the air pressure, and the other end of each of the two pressure balancing holes is connected to the pressure relief channel.

[0010] In summary, this application includes at least one of the following beneficial technical effects:

[0011] 1. This application enables more efficient gas transport, thereby greatly improving the gas exchange efficiency of the control valve;

[0012] 2. This application can simultaneously regulate the transport of two different gases, and has stronger practical performance compared to traditional ventilation regulating valves;

[0013] 3. This application has a pressure relief structure, which can effectively prevent excessive pressure from occurring during use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a four-channel diaphragm oxygen generator ventilation regulating valve according to this application.

[0015] Figure 2 yes Figure 1 Cross-sectional view at point AA.

[0016] Figure 3 yes Figure 1 Cross-sectional view at point BB.

[0017] Figure 4 yes Figure 3 A magnified view of point A in the middle.

[0018] Figure 5 This is a structural view of the pressure relief channel of a four-channel diaphragm oxygen generator ventilation regulating valve according to this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Valve body; 11. Valve chamber; 111. Top chamber; 112. Intermediate chamber; 113. Bottom chamber; 1131. Upper section; 1132. Lower section; 1133. Air-blocking ring; 12. Inlet passage; 13. Outlet passage one; 131. Pressure relief hole; 14. Outlet passage two; 15. Pneumatic passage; 151. Pressure balance hole; 16. Pressure relief passage; 161. Elastic sealing ring; 2. Conductive hub; 3. Valve stem; 31. Upper diaphragm; 32. Lower diaphragm; 33. Plug ring; 4. Drive component. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0021] This application discloses a four-channel diaphragm oxygen generator ventilation regulating valve.

[0022] Reference Figure 1 A four-channel diaphragm-type oxygen generator ventilation regulating valve includes a valve body 1 and two conductive hubs 2 symmetrically mounted on the valve body 1. The two conductive hubs 2 are electrically connected to a drive element 4 embedded inside the valve body 1, and are also electrically connected to an external power source for supplying electrical energy. The valve body 1 has two valve chambers 11 symmetrically arranged along its width, and two valve stems 3 slide axially through each of the two valve chambers 11. The drive element 4 drives the valve stems 3 to move up and down, thereby achieving ventilation regulation.

[0023] Reference Figure 2 and Figure 3 The valve chamber 11 specifically includes a top chamber 111, an intermediate chamber 112, and a bottom chamber 113 that are interconnected. The valve stem 3 slides through the two intermediate chambers 112. The valve body 1 also has two symmetrically arranged air intake channels 12 that are respectively connected to the two intermediate chambers 112. Both ends of the valve stem 3 extend out of the intermediate chambers 112 along the axis, and an upper diaphragm 31 and a lower diaphragm 32 are respectively fitted at the top and bottom ends. At the same time, a plug ring 33 that matches the size of the intermediate chamber 112 is also fitted on the side of the valve stem 3 where the upper diaphragm 31 and the lower diaphragm 32 are close to each other.

[0024] When the valve stem 3 moves up and down within the intermediate cavity 112, it drives the plug rings 33 located at both ends of the valve stem 3 to move and alternately enter the intermediate cavity 112. The valve body 1 is provided with an air outlet channel 13 that communicates with the two top cavities 111 and an air outlet channel 14 that communicates with the two bottom cavities 113. The upper diaphragm 31 and the lower diaphragm 32 respectively cooperate with the plug rings 33 located at the top and bottom of the valve stem 3 to close the air outlet channel 13 and the air outlet channel 14.

[0025] Meanwhile, two drive components 4 are symmetrically arranged on the valve body 1. The two drive components 4 are respectively connected to the two valve stems 3 to drive the two valve stems 3 to move up and down.

[0026] Reference Figure 2 and Figure 4 Specifically, the driving component 4 can be an electric push rod, and two electric push rods are respectively connected to two valve stems 3 to drive the two valve stems 3 to move up and down. The bottom cavity 113 includes an upper section 1131 and a lower section 1132, and the upper section 1131 and the lower section 1132 are separated by an airtight air-blocking ring 1133. The bottom end of the valve stem 3 slides within the air-blocking ring 1133. The upper section 1131 is connected to the second air outlet channel 14. When the valve stem 3 slides down, it can drive the intermediate cavity 112 to connect with the upper section 1131 and the second air outlet channel 14. Two pneumatic channels 15 are symmetrically opened on the valve body 1, which are respectively connected to the lower section 1132. The output end of the electric push rod slides through the pneumatic channel 15.

[0027] The electric linear actuator is not explicitly shown in the accompanying drawings of this application, but as a mature existing technology, the electric linear actuator is an electric drive device that converts the rotary motion of an electric motor into the linear reciprocating motion of a linear actuator.

[0028] When the electric actuator is working, it increases or decreases the gas pressure by increasing or decreasing the effective space of the pneumatic channel 15, thereby creating a pressure difference between the intermediate cavity 112 and the lower partition 1132 to push the valve stem 3 to slide.

[0029] Reference Figure 2 and Figure 4 Furthermore, a pressure relief hole 131 is provided on the side wall of the first air outlet channel 13, and a pressure relief channel 16 connected to the outside is provided on the valve body 1. One end of the pressure relief channel 16 is connected to both the pressure relief hole 131 and the upper partition 1131. An elastic sealing ring 161 is also installed in the pressure relief channel 16 to block the pressure relief channel 16 when the air pressure does not reach the predetermined value, so that when the air pressure in the first air outlet channel 13 and the second air outlet channel 14 is within the normal range, the gas can be smoothly discharged from the first air outlet channel 13 and the second air outlet channel 14.

[0030] Reference Figure 2 and Figure 5 Furthermore, pressure balance holes 151 are provided on the side walls of both pneumatic channels 15, and the other end of the pressure balance holes 151 is connected to the pressure relief channel 16 to balance the air pressure in the lower partition 1132 and the pneumatic channel 15, so as to avoid excessive pressure.

[0031] The implementation principle of a four-channel diaphragm oxygen concentrator ventilation regulating valve in this application embodiment is as follows:

[0032] This application uses an electric actuator to drive the movement of two valve stems 3. When the gas to be transported enters the intermediate chamber 112 from the inlet channel 12, the air pressure in the intermediate chamber 112 increases. At this time, driving the electric actuator changes the air pressure in the lower partition 1132, thus creating a pressure difference with the intermediate chamber 112. Under the action of this pressure difference, the valve stems 3 are driven to move up or down, thereby opening the outlet channel 13 or the outlet channel 14.

[0033] Due to the unique structure of this application, when two identical gases are introduced into the valve body 1, the gas can be controlled to exit from a single outlet channel or simultaneously from both outlet channels. Furthermore, when two different gases are introduced, they can be kept separate, demonstrating high practical performance.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A four-channel diaphragm-type oxygen generator ventilation regulating valve, comprising a valve body (1) and two conductive hubs (2) symmetrically mounted on the valve body (1), each of the two conductive hubs (2) being externally connected to a power source, the valve body (1) having two symmetrically arranged valve chambers (11), and valve stems (3) slidably passing through each of the two valve chambers (11), each valve chamber (11) comprising a top chamber (111), a middle chamber (112), and a bottom chamber (113) communicating with each other, the valve stems (3) slidably passing through the middle chamber (112), and the top and bottom ends of the valve stems (3) respectively fitted with an upper diaphragm (31) and a lower diaphragm (32) for closing the top chamber (111) and the bottom chamber (113), characterized in that: The valve body (1) is symmetrically provided with air inlet channels (12) that communicate with the two intermediate cavities (112) respectively. Both ends of the valve stem (3) are fitted with plug rings (33). When one of the plug rings (33) enters the intermediate cavity (112), the other plug ring (33) leaves the intermediate cavity (112). The valve body (1) is provided with an air outlet channel one (13) that communicates with the two top cavities (111) and an air outlet channel two (14) that communicates with the two bottom cavities (113) respectively. The valve body (1) is symmetrically provided with two driving members (4) that are used to drive the two valve stems (3) respectively and are electrically connected to the conductive hub (2).

2. The four-channel diaphragm-type oxygen generator ventilation regulating valve according to claim 1, characterized in that: The driving component (4) is an electric push rod. The bottom cavity (113) includes an upper section (1131) and a lower section (1132). The upper section (1131) and the lower section (1132) are separated by an airtight air-blocking ring (1133). The upper section (1131) is connected to the second air outlet channel (14). The valve body (1) has two symmetrically arranged pneumatic channels (15) that are respectively connected to the two lower sections (1132). The output end of the electric push rod slides through the pneumatic channel (15) to push air into the lower section (1132) and drive the valve rod (3) to move by changing the air pressure.

3. The four-channel diaphragm-type oxygen generator ventilation regulating valve according to claim 2, characterized in that: The side wall of the air outlet channel (13) is provided with a pressure relief hole (131), and the valve body (1) is provided with a pressure relief channel (16) that communicates with the outside. The pressure relief channel (16) is connected to the pressure relief hole (131) and the upper partition (1131). An elastic sealing plug for blocking the pressure relief channel (16) is also installed in the pressure relief channel (16).

4. The four-channel diaphragm-type oxygen generator ventilation regulating valve according to claim 3, characterized in that: Both pneumatic channels (15) have pressure balancing holes (151) on their sidewalls to balance the air pressure, and the other end of each pressure balancing hole (151) is connected to the pressure relief channel (16).

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